Which structure of the cell controls what goes in and comes out of the cell?

cell membrane

Explanation: The cell membrane is a structure that prevents the cell from deforming. It keeps the cell in it's boundaries. This prevents particles from the outside of the cell and inside from moving. The answer is cell membrane.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".